efish tidy command exited with error code 256 help plese

Hello,

So I am trying to run the command "Tidy convert to XHML" and once it runs I
receive the following error:

"The command tidy -utf8 -i -w 80 -c -q -asxhtml exited with error code 256."

I am using Linux Mint 17, 64 bit with 6GB of ram on an i5 Processor and am
using version 2.2.5 of Bluefish.


Any help how to correct this would be greatly appreciated.


Thank you,

Trina